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Oxana [17]
3 years ago
13

An experienced bricklayer can construct a small wall in 4 hours. An apprentice can complete the job in 12 hours. Find how long i

t takes if they work together.
It would take _ hours for an experienced bricklayer and apprentice to construct a small wall together.
​(Type an integer or a​ decimal.)
Mathematics
1 answer:
cricket20 [7]3 years ago
6 0

It would take

1/(1/4 + 1/12) = 3 hours ...

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